Also, is there anyway to get to them? Like, to climb up them and stuff?
Jeremy, I remember those and asked about them myself, they are grain handling silos for bulk ships. You guys are main exporters of grain around the world. To your second question, I don't think that would be a good idea, being on the waterfront, think they would be covered by Australian Customs and Quarantine Services, and would have a rotating shift of security, coming under a government facility I would assume, you would be arrested.
They were grain silos, they are no longer in use. There is no way you could climb them without being caught by security.